时间:2018-12-01 作者:英语课 分类:英语专业四级听力50篇


英语课

We use plastic wrap 1 to protect our foods. We put our garbage in plastic bags or plastic cans. We sit on plastic chairs, play with plastic toys, drink from plastic cups, and wash our hair with shampoo 2 from plastic bottles!

Plastic does not grow in nature. It is made by mixing certain things together. We call it a produced or manufactured 3 material. Plastic was first made in the 1860s from plants, such as wood and cotton. That plastic was soft and burned easily.



The first modern plastics were made in the 1930s. Most clear plastic starts out as thick, black oil 4. That plastic coating inside a pan 5 begins as natural gas.

Over the years, hundreds of different plastics have been developed. Some are hard and strong. Some are soft and bendable 6. Some are clear. Some are many-colored. There is a plastic for almost every need. Scientists continue to experiment with plastics. They hope to find even ways to use them!



1 wrap
n.外套,围巾,包裹,限制,约束,秘密;vt.包装,卷,缠绕,包,裹,覆盖,遮蔽,隐藏
  • You'd better wrap it with a piece of clean cloth.你最好用一块干净的布把它包起来。
  • You can wrap the skirt around your waist.你可以把裙子围在腰间。
2 shampoo
n.洗发精;洗发香波
  • I like to use shampoo to wash my hair.我喜欢用洗发水洗头发。
  • Do you have shampoo here?你有洗发膏吗?
3 manufactured
adj.人造的v.(大规模)制造( manufacture的过去式和过去分词 );捏造;加工;粗制滥造(文学作品)
  • a news story manufactured by an unscrupulous journalist 一位不道德的记者编造的一篇报道
  • We want the machine manufactured to our own spec. 我们要求这台机器按我们自己的规格来制造。
4 oil
n.油,油画颜料;v.涂油,溶化,加油
  • China is rich in oil resources.中国的石油资源丰富。
  • It might need some oil.它大概需要一些油。
5 pan
n.平底锅;v.严厉批评
  • The water had all boiled away and the pan was burned.水煮干了,锅也烧坏了。
  • The eggs were frying in the pan.鸡蛋正在锅里煎。
6 bendable
可弯曲的
  • Grilamid frame: flexible, bendable and lightweight. Grilamid框架:灵活,可弯曲,重量轻。 来自互联网
  • It is based on a bendable rubber track that guarantees maximum traction asas freely changeable directions. 它是基于轨道,保证最高可折橡皮牵引以及自由多变的方向。 来自互联网
学英语单词
aerobiotic
aethiopis
aging periods
aluminum-air cell
American merlin
angariation
antenna complex
bahaization
bank of supporter
casual-dress day, casual day
characteristic vector
clavate process
combretum pilosum roxb.
computing statement
conductive salinometer
conidio-
constant input
coriaceum
decade oscillator
diamondback turtle
diurnal filariasis
drawleg
dynamic programming model
ecological boomerang
exteriorly
failure detection
falling rocks
go over like nine pins
gonecystis
great-great-
group 2 facsimile machine
harold lloyds
higher laws
i will follow
iceycle
immersion lens
in all
jaagsiepte jaagsiekte
jaffeite
jean-mary
Jebsen Point
jobmaster
kdj
lattice cell
lepra maculosa
lituites
lyricalness
m. scalenus medius
make heavy wiather
manette
mid-chrome yellow paint
minehunting sonar
mortifications
mycolyl
nanotubules
Nkoyé
nonclassical carbocation
onna mai (japan)
patty cake
PETALICHTHYOMORPHA
plasma thromboplastin
polar-bear
pollen chamber
pressed grape
previllous embryo
product metric
professional mannerism
program uncertainty
proportionality limit
puckishly
pyrilamine
q-analyses
quinoxalinedione
recoil spectrum
red and black vertical stripes buoy
relayings
scrapable
seppanen
sheepcote
shunt-regulated amplifier
skiffles
soild runoff
sond
steel-bonded carbide products
Stegolophodon
structured program
sueos
swift-handedness
swung for the fences
system integration test
table feed
tarsias
tetovo
tetramannose
thisan
titty juice
to sneeze
trisynocotyledonous
tubercle
unfragmentable
uranoscopus tosae
Wankel rotary compressor